I'am 27 yr old and my wife is 23, we got married a year ago. I'm working in nightshift since last 5 years and I smoke 2 cigrates daily and drink occasionally. My problem is that I'm more addicted to enjoy sex through masturbation then having sex with my wife, I often watch porn and masturbate even when my wife is in next room. Whenever I try t have sex with her, I do intercourse however, I am not able to ejaculate even after 15 minutes of sex, my weight is 100 kgs. I do decent foreplay and my wife does feel the pain when I enter her, but I have never seen a blood in her vagina, pls suggest what should I do to have a good sex with which I can eventually ejaculate my semen and have a confident sex life